class_docstr: Index subclass for indexes backed by NDArrayBackedExtensionArray.
class_docstr_tok: ["Index","subclass","for","indexes","backed","by","NDArrayBackedExtensionArray","."]
code: def _get_engine_target(self) -> np.ndarray:
      return self._data._ndarray
  
file_path: catboost/contrib/python/pandas/py3/pandas/core/indexes/extension.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Callable, TypeVar
  import numpy
  from pandas._typing import ArrayLike, npt
  from pandas.util._decorators import cache_readonly, doc
  from pandas.core.dtypes.generic import ABCDataFrame
  from pandas.core.indexes.base import Index
label_desc: Use image node_id 1 for calling the NDArrayBackedExtensionIndex obj's underlying member method code with example usage: obj._get_engine_target() and returns: self